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Finding the Fourth Proportional to 351,726.59, 485,383.12 and 190,581.59

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Solution

The fourth proportional to 351,726.59, 485,383.12 and 190,581.59 is: 263,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,726.59 : 485,383.12 = 190,581.59 : x
  2. Step 2: Convert to fraction form
    351,726.59/485,383.12 = 190,581.59/x
  3. Step 3: Cross multiply
    351,726.59x = 485,383.12 × 190,581.59
  4. Step 4: Simplify right side
    351,726.59x = 92,505,087,505.76
  5. Step 5: Solve for x
    x = 92,505,087,505.76/351,726.59
  6. Step 6: Final answer
    x = 263,002.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.